Mallet locomotive



March 15,1927. 1,621,339? E. M- SHANNON .MALLET LOCOMOTIVE Filed Sept. 5, 1926 30 the transverse chamber 5.

Patented Mar. 15, 1927.

UNITED." STATES ELLWOOD M. SHANNON, OF BALA, PENNSYLVANIA.

. MALLET LOCOMOTIVE.

Application filed September 3, 1926. Serial No. 133,393.

My invention relates to certain improve- I with the pipes leading to the front and rear cylinders.

Fig. 2 is a sectional view on the line 2, 2,;

Fig. 1, showing a portion of the smoke box in theboiler in dotted lines.v

1 is a steam distributor which is arranged transversely under the smoke box of a locomotive. This distributor has a flange 2 which is bolted or otherwise secured to the casing of the smoke box 3 shown by dotted lines in 26 Fig.2. 7

The casing of the smoke box, in the present instance, is cut away to receive the distributor. The distributor has passages 1 in its upper surface which communicate with The passages 4 are connected to suit-able pipes with the superheater of the locomotive.

Depending from the center of the distributor is a projection 6 having a. socket 7 for a ball section 8 of a steam pipe 9 which is coupled in like manner to a. pipe 10 which leads to the two cylinders on the forward frame of the mallet locomotive, so that the steam can freely pass from the chamber 5 through the pipe 9 of the said cylinders. Projecting at eachside of the casting 1 is a curved neck 11 having a flange 12 in the present instance. Each flange is secured to a flange 13 on a pipe 14 which leads to one of the cylinders on the rear frame of the locomotive.

In some instances the flange of the distributor may be extended to form'the bottom sectionof the smoke box of the boiler.

By this construction, the steam from the superheater entering the chamber 5 through the passages 4 on each side of the center of the structure willbe evenly distributed to the front and rear cylinders of the locomotive. This construction is very simple and the couplings can be readily made and maintained withoutleakage as the entire construction is carried by the smoke box of the locomotive boiler. i

I claim: v

1. The combination in a simple mallet locomotive, of a smoke box, of a boiler; a distributor secured to the underside of the smoke box and having a steam chamber 1 therein; a passage in the structure arranged to be connected to the boiler, and said structure having'pass'ages arranged to communicate with the pipes'leading'to the cylinders on the forward frame and cylinders on the rear frame of the. locomotive.

2. The combination ina simple mallet locomotive; of a smoke box; of a boiler; a

steam distributor secured to the underside of sa1d smoke box, sa1d distributor having a steam chamber therein andhavlng two openings, one on each side of the center arranged to receive steam from the boiler, and having a central passage communicating with the pipe leading to the cylinders on'the forward frame and having end passages arranged to be coupled to the pipes leading to the cylinders on the rear frame of the locomotive.

8. A distributor for a simple mallet locomotive having a flange arranged to be secured to the underside of the smoke box of the boiler of a locomotive and having a chamber therein, said distributor having openings in the upper surf-ace at each side of the 'cen-.

ELLWOOD SHANNON. 

